240520724 has 12 divisors (see below), whose sum is σ = 421312500. Its totient is φ = 120145728.

The previous prime is 240520697. The next prime is 240520733. The reversal of 240520724 is 427025042.

It can be written as a sum of positive squares in 2 ways, for example, as 176039824 + 64480900 = 13268^2 + 8030^2 .

It is a junction number, because it is equal to n+sod(n) for n = 240520693 and 240520702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23849 + ... + 32400.

It is an arithmetic number, because the mean of its divisors is an integer number (35109375).

Almost surely, 2^240520724 is an apocalyptic number.

It is an amenable number.

240520724 is a deficient number, since it is larger than the sum of its proper divisors (180791776).

240520724 is a wasteful number, since it uses less digits than its factorization.

240520724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57322 (or 57320 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 240520724 is about 15508.7305734544. The cubic root of 240520724 is about 621.8956239013.

Adding to 240520724 its reverse (427025042), we get a palindrome (667545766).

The spelling of 240520724 in words is "two hundred forty million, five hundred twenty thousand, seven hundred twenty-four".